Brick-press



UNITED STTES ATENT QBCE.

o. B. BAKER, or TROY, NEw YORK.

BRICK-PRESS.

Specification of Letters Patent No. 5,617, dated June 6, 1848.

To al whom t may concern Be it known that I, C. B. BAKER, of Troy, in the county of Rensselaer and State of New York, have invented a new and useful Improvement in Brick-Presses, and that the following is a full, clear, and exact description of t-he principle or character which distinguishesit from all other things 'before known and of the manner of making, constructing, and using the same, reference being had to the accompanying drawing, making part of this specification, which represents a vertical section of the machine.

The nature of my improvement consists in the formation of the follower of the press by which a vertical motion can be used, and at the same time an equal quantity of clay, or clay of uniform density can be pressed into all parts of the mold at the same time.

The construction is as follows: On one end of a suitable frame (A) the plug mill (B) rests; this is of o-rdinary construction and in common use, an opening (c) is made from this into the hopper (d), which is an oblong box in the bottom of which there is a grating (e) under which the molds (f) are made to slideby means of a carriage (g) which moves back and forth on wheels (71.) that run onv ways formed on each side of t-he frame above a slat work that forms a table at the top of the frame. But

The

carriage (g) is drawn forward by a cord wound round a drum (Z) that is turned by a lever that is placed on its axis outside the frame, and is drawn back again into the position shown in the drawing by a weight (n). The follower (o) plays up and down in the hopper (d); it is moved by racks attached to it, one at each end, one of which only is shown in the drawing; these racks are moved by pinions (g) on a shaft (r) which has on its outer end a hand wheel by which it is turned and pressure made; these parts are counterbalanced by the weight which is suspended by a cord (i) to the wheel. The face or lower surface of the follower .(0) is made concave or with a curved projection at each end which serves to throw the clay toward the center and equalize or condense the clay into the molds so as to produce a brick of equal texture which can not be effected by the ordinary follower.

What I claim as my invention, and desire to secure by Letters Patent, is

The employment of the follower having projecting edges, as above described, in combination with the hopper grating and brick molds, substantially in the manner and for the purpose set forth.

C. B. BAKER.

)Vitnesses S. L. JONES, Trros. lV. PHIPPS. 

